"Project entitled ""Children in the forest - prevention of nature deficit disorders"" was carried out by two schools: the Private Primary School of the Queen Saint Jadwiga Foundation in Przyłęków (Poland) and Preilu Briva skola (Latvia) for a period of 24 months. The main goal of this project was to enable the teachers of our school, together with a partner organization, to share knowledge and experience in the field of specificity and methodology in Montessori education, ""forest education"" inspired by the idea of ​​forest kindergartens, development tutoring among students and methods of informal education. We have developed modern working methods by combining the above-mentioned methods in order to obtain the best educational effect for children and adults . Through the exchange of good practices in our schools, the workshop of educators was developed to help our students gain the skills and competences needed for their current and future functioning. Participation in an international project brought much better results than in the case of local projects. The professional environment within the Montessori organization began to introduce good practices and new methods to everyday activities not only in the school in Przyłęków, but also in other facilities of the Foundation, including in Koszarawa, Kęty and Grodzisk Mazowiecki. Cooperation at the international level allowed to implement innovative practices, a better understanding of the links between formal and non-formal education. The experience related to the implementation of the project had a significant impact on the improvement of the quality of teacher education - it should bring positive and long-lasting effects in building the image of the teacher in the school community. The received funding allowed equal opportunities for teachers and built a lasting partnership in Europe. The main goals of the project: 1) sharing knowledge and experience in education in Montessori, ""forest education"" inspired by forest kindergartens, shaping social skills (the five principles of Ashoka), tutoring, TRIZ, Waldorf, ways of cooperation with parents and partnership with the local community; 2) modern professional involvement in the search for good practices and their implementation in their school environments; 3) improving the skills and qualifications of employees in the use of forest education in kindergartens and classes at higher education levels; 4) improvement of proprietary teaching programs in the fields of mathematics - science, language and emotional development, taking into account the methods of forest and field education on a European scale; 5) improving teachers' skills in the field of foreign languages; 6) exchange of knowledge on the creation of an optimal environment that will allow children and adultsto better develop not only knowledge but also social skills, such as team work, creativity, openness to change, empathy, leadership and mindfulness; 7) promotion of a healthy lifestyle - prevention of nature deficit disorders; 8) preparing the school as a place and team for national and international training in the field of education; We achieved these goals thanks to the activities planned in the project: participation in physical mobility of 10 teachers of our school and 5 in virtual mobility, as well as 8 teachers from the partner school (physical mobility) and 5 in virtual mobility. The planned activities have a long-term impact on the participants, and in particular on increasing the attractiveness of the educational program in partner schools. The scope of the project also covered students, teachers and the entire local community of schools not directly involved in the activities planned in this project. The developed good practices were implemented in other schools of our Foundation (value added project). The very way of implementing the project, i.e. trips abroad, was a more attractive form of learning, which motivates both students and teachers. In addition to the above activities, we have developed a rich project documentation in the form of an e-book ""Handbook for outdoor education practitioners"", articles disseminated on the Polish educational platform E-mi (meaning Education can be different), the Edukacja pod Chmurką webinar and on the websites of partner schools. In addition, we conducted an international training on the eTwinning Live platform on forest pedagogy and the possibilities of its implementation in various forms of education. Access to the above materials will be ensured by placing them in open educational resources, incl. on the Erasmus Plus Dissemination Platform."